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Adding Automated Functionality to Office Applications

Adding Automated Functionality to Office Applications

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Adding Automated Functionality to Office Applications

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  1. Adding Automated Functionality to Office Applications

  2. Macros • A macro is a or recorded and actions. • With a single keystroke, users can play back these activities at a much faster speed than those same actions can be performed manually. • Macros can help and the risk of error that typically occur when performing repetitive tasks.

  3. Two different ways macros are created • K Macros • Perform a sequence of operations using keystrokes and the mouse and the application records what you are doing • W programming to accomplish a task. • Both options use Visual Basic for Applications (VBA). The difference is how the VBA code is created

  4. Customize Ribbon ------ Select DEVELOPER as one of the main tabs File tabSelect OPTIONS

  5. Recording 2 Macros • First macro: Sum all columns • Second macro • Sum all columns • Paste values into a Copy row • Deletes answer row (from first step)

  6. Recording Macros • Benefits • Q way to add automated functionality to your spreadsheet. The macro recorder simply records the keystrokes that you take or mouse actions that you perform • Code is guaranteed to be free from syntax/coding errors • Can serve as a if you are inexperienced. • Weaknesses • The macro recorder does not write the most efficient code. It records actions and commands you might not need or want. • May have to record macro several times due to making errors in the recording process. More chances for making errors. • If changes are made to the document (add column or row), the macro may not function as intended. • Not as robust • Works well for , but sometimes you want advanced functionality that recorded macros can’t make possible (button tasks)

  7. Visual Basic for Applications (VBA) Write programming code to accomplish a task.

  8. Visual Basic for Applications (VBA) • Visual Basic for Applications (VBA) is a programming language • VBA is a of • VBA requires a • Excel, Access, PowerPoint, Word • You can customize an Excel workbook or enhance Access database objects. • Create your own custom functions • Perform calculations using variables and constants • Create buttons that initiate process tasks (clicking button results in something happening) • Display messages to users • Automate tasks rather than repeatedly doing something

  9. Procedures (also known as sub procedures or event procedures) are programming instructions that . • Words in green are (not executable): apostrophe ‘comment • Blue text signifies VBA keywords (reserved words) that have special meaning • Black text is regular text you have added • Indenting segments of code improves readability.

  10. VBA is an programming language: objects are created and then methods/actions are taken to manipulate to those objects. • When a program is running, it needs to be able to accept input, perform calculations and then display output. • I and boxes (located on a form or in an application) are used to obtain input for users while a program is running.

  11. Programs use constants and variables • Constants store values that • Variables store values that can while the program is running. • Data types • Use for alphanumeric data (letters, numbers, symbols) • Use one of the numeric data types if the data will be used in a

  12. Typically, a computer program executes instructions sequentially ( ). This is called a sequence structure. • However, there are two notable exceptions • D Structure • A comparison is made, and based upon the results of the comparison, the program executes statements in a certain order • IF statements • IF…Then…Else statements (including ElseIf) • Select Case • R Structure • Repeats the execution of certain statements while a certain condition is true OR until a condition is true • For…Next • Loops • Do While • Do Until

  13. Istatements specify what should happen if a condition is true, but there is no alternative if the statement is false. • IF…Then…Else statements specify what should happen if a condition is true and what should happen if a condition is false. • Just like our

  14. Select Case • Select Case allows you to test one value , and based upon the category something is in, it returns the appropriate result. • This is much easier to create and understand than nesting Ifs inside other Ifs.

  15. Repetition Structures • R the execution of statements while a certain condition is true OR until a condition is true • For…. statements repeat execution a • D repeat steps until something has happened or while something has not happened. • Do until or Do while